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My arduino car project

yawgyakobo
yawgyakobo over 12 years ago

Hi, My name is Andrew. I have been making an RC car using an arduino. When I connect the stepper motors to the arduino pins, the motors either don't work or rotate slowly. When I connect a motor shield to the arduino I don't know the correct pins to connect the motors since the pins are not labelled 13,12, or 1,2,3 . So I want ask you to send me an image of a motor shield that has labelled pins(13,12 and so on) and connects to an arduino.

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  • e14 Contributor
    0 e14 Contributor over 12 years ago

    If you want to control motors with an arduino you need to use a transistor with the collector connected to one of the wires on the motor and the emitter connected to the 5v supply rail on your arduino board then the base pin connected to an I-0 pin on the arduino.

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  • Robert Peter Oakes
    0 Robert Peter Oakes over 12 years ago in reply to e14 Contributor

    The Arduino 5V rail will not be able to supply the current for an RC motor. You will also need more than just a transistor connected the way you describe

     

    good tutorial is here https://learn.adafruit.com/adafruit-arduino-lesson-13-dc-motors/overview

     

    regards

     

    peter

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  • Robert Peter Oakes
    0 Robert Peter Oakes over 12 years ago in reply to Robert Peter Oakes

    with the exception that this too uses the 5V rail to supply the motor, this will work for the smallest of motors with no load on them but not RC cars

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  • Robert Peter Oakes
    0 Robert Peter Oakes over 12 years ago in reply to Robert Peter Oakes

    with the exception that this too uses the 5V rail to supply the motor, this will work for the smallest of motors with no load on them but not RC cars

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